// JavaScript Document
function CalculateOrder(form)
{
if (form.os0.value == "500 x 1500mm")
 { form.amount.value = 31.5;
 form.item_number.value = ""; }
 if (form.os0.value == "500 x 2000mm")
 { form.amount.value = 34;
 form.item_number.value = ""; }
  if (form.os0.value == "500 x 2500mm")
 { form.amount.value = 39.5;
 form.item_number.value = ""; }
  if (form.os0.value == "500 x 3000mm")
 { form.amount.value = 47;
 form.item_number.value = ""; }
  if (form.os0.value == "500 x 3500mm")
 { form.amount.value = 55;
 form.item_number.value = ""; }
  if (form.os0.value == "500 x 4000mm")
 { form.amount.value = 63;
 form.item_number.value = ""; }
  if (form.os0.value == "500 x 4500mm")
 { form.amount.value = 70;
 form.item_number.value = ""; }
  if (form.os0.value == "500 x 5000mm")
 { form.amount.value = 79;
 form.item_number.value = ""; }
 if (form.os0.value == "1000 x 1500mm")
 { form.amount.value = 47;
 form.item_number.value = ""; }
 if (form.os0.value == "1000 x 2000mm")
 { form.amount.value = 63;
 form.item_number.value = ""; }
  if (form.os0.value == "1000 x 2500mm")
 { form.amount.value = 78;
 form.item_number.value = ""; }
  if (form.os0.value == "1000 x 3000mm")
 { form.amount.value = 94.5;
 form.item_number.value = ""; }
  if (form.os0.value == "1000 x 3500mm")
 { form.amount.value = 110;
 form.item_number.value = ""; }
  if (form.os0.value == "1000 x 4000mm")
 { form.amount.value = 126;
 form.item_number.value = ""; }
  if (form.os0.value == "1000 x 4500mm")
 { form.amount.value = 141;
 form.item_number.value = ""; }
  if (form.os0.value == "1000 x 5000mm")
 { form.amount.value = 155.5;
 form.item_number.value = ""; }
 if (form.os0.value == "1350 x 1500mm")
 { form.amount.value = 63.5;
 form.item_number.value = ""; }
 if (form.os0.value == "1350 x 2000mm")
 { form.amount.value = 85;
 form.item_number.value = ""; }
  if (form.os0.value == "1350 x 2500mm")
 { form.amount.value = 106.5;
 form.item_number.value = ""; }
  if (form.os0.value == "1350 x 3000mm")
 { form.amount.value = 127;
 form.item_number.value = ""; }
  if (form.os0.value == "1350 x 3500mm")
 { form.amount.value = 148.5;
 form.item_number.value = ""; }
  if (form.os0.value == "1350 x 4000mm")
 { form.amount.value = 151;
 form.item_number.value = ""; }
  if (form.os0.value == "1350 x 4500mm")
 { form.amount.value = 159.5;
 form.item_number.value = ""; }
  if (form.os0.value == "1350 x 5000mm")
 { form.amount.value = 177;
 form.item_number.value = ""; }
}